Are the elbow and three - pipe fittings installed in the water supply and drainage pipes included?
Indoor and outdoor plastic water supply pipe (hot melt connection) project, the pipeline joint parts are the same way of plastic pipe is connected with the pipeline, including various types of steel (copper) plastic conversion parts, such as other materials fee, the remaining unchanged.
Indoor heating plastic pipe, aluminum-plastic composite pipe, stainless steel pipe, copper pipe installation project, the pipeline joint parts as materials, according to design drawings to determine the number and loss of 1% of the cost of materials shall be calculated separately.
This needs to consider the pipeline material, under normal circumstances, the steel pipe welding connection, the thread connection, the plastic pipe plug connection (mainly for the PVC pipe) are not calculated pipe fittings, included in the quota;The following pipes need to be individually calculated:1, steel pipe groove or flange connection, need to calculate groove pipe fittings, flange piece;
